CN105257805A - Pulley for Alternator - Google Patents
Pulley for Alternator Download PDFInfo
- Publication number
- CN105257805A CN105257805A CN201510385307.2A CN201510385307A CN105257805A CN 105257805 A CN105257805 A CN 105257805A CN 201510385307 A CN201510385307 A CN 201510385307A CN 105257805 A CN105257805 A CN 105257805A
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- Prior art keywords
- connection shaft
- foreign steamer
- hollow mandrel
- alternator
- hollow
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- 230000001360 synchronised effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000008447 perception Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H2055/366—Pulleys with means providing resilience or vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
The invention relates to a belt pulley for an alternating current generator, in particular to a belt pulley suitable for an alternating current generator for a vehicle. The pulley comprises: an outer wheel, a clutch wheel, a hollow connecting shaft, an elastic component and the like. The belt pulley can effectively reduce the problem that the belt and the tension pulley of the alternating-current generator vibrate due to the change of the rotating speed of the engine of the vehicle body, thereby increasing the overall operating efficiency of the alternating-current generator and the service life of the working belt and the tension pulley.
Description
Technical field
The present invention relates to a kind of belt pulley, particularly a kind of belt pulley of alternator of automobile for alternator.
Background technique
Alternator is the one of generator, and mechanical energy can be converted to the electric energy of alternating current (a.c.) form by it.Automobile-used alternator is then convert the mechanical energy of engine to electric energy, the charging of supply storage battery, use the electrical equipment that supply electric power to give on automobile other and use, and starting motor rotates engine.
Alternator generally has a stationary torus and and is placed in rotor in stationary torus, stator is wound with wire, by rotor fast movement in the stator, there is relative movement in the magnetic field that wire and rotor are formed, and in wire, produces induction electromotive force (voltage).
Vehicle alternator normally utilizes engine to drive a belt, and this belt sleeve is placed on belt pulley, and belt pulley is then connected to rotor, thus rotor driven rotates.But traditional alternator design is when engine start or moment anxious acceleration and deceleration, and generator will present the state significantly changed to the charging transient waveform of storage battery, cannot stablize.In addition, be nested with belt both sides over pulleys carried, side is pilled-in selvedge, opposite side is slack list, the belt of slack list because of tension force less therefore a tensioner can be established thereon to adjust belt tension, but when the rotating speed cataclysm of engine transferring power, belt pulley because of generator is admittedly locked by nut, and belt is flexible material, and by rotating speed immediate response, therefore very easily cannot cause slippage between belt and belt pulley.Moreover, rotating speed fluctuated causes belt also to bear belt pulley when bearing and covering varying stress rotating the centrifugal force be applied thereto simultaneously, rotating speed difference causes centrifugal force size to change thereupon, therefore belt be also often in belt interior microscopic tension force pull to become with outward appearance significantly whipping bad because of under.
Summary of the invention
Because the deficiency described in above-mentioned prior art, the invention provides a kind of belt pulley for alternator, it effectively can reduce the belt pulley vibrations that cause and belt slack or damage because the change of speed difference, thus the whole generator operational paradigm and extend its operating life of increasing exchanges.
For achieving the above object, the invention provides a kind of belt pulley for alternator, it comprises a foreign steamer, and its center is provided with an axis hole; One clutch pinion, it is fixedly arranged in the axis hole of foreign steamer, and has a pivot hole; One hollow connection shaft, it has a first end and one second end, first end is rotatably arranged in the pivot hole of clutch pinion, thus hollow connection shaft transfers the registration of Party membership, etc. from one unit to another altogether turning to upper maintenance in a first-phase through clutch pinion and foreign steamer, become an idling conditions in a second-phase to turning to the corotation relation of then disengaging and foreign steamer; One hollow mandrel, it has a first end and one second end, hollow mandrel is rotatably placed in foreign steamer, and hollow mandrel is through hollow connection shaft, make the first end of hollow mandrel give prominence to the first end of hollow connection shaft, and make the second end of hollow mandrel rotatably be configured on the second end of hollow linking axes; One elastic component, it is arranged between the second end of hollow connection shaft and the second end of hollow mandrel; And a close-fitting assembly, its close-fitting is sheathed on the outer shroud wall of the first end of hollow mandrel, and an end face phase close-fitting of first end with hollow connection shaft, thus through the frictional force of close-fitting assembly respectively and between hollow linking axes and hollow mandrel, make the coaxial corotation of hollow connection shaft and hollow mandrel.
Thus when external force drives foreign steamer to rotate, foreign steamer relative to hollow connection shaft in first-phase to turning to rotation, and hollow connection shaft synchronous rotary is driven through clutch pinion, hollow connection shaft also drives hollow mandrel to rotate by close-fitting assembly, if the frictional force that now close-fitting assembly provides is not enough to drive hollow mandrel to rotate, then namely the second end of hollow connection shaft oppresses elastic component, and namely elastic component pushes away the second end of hollow mandrel of pulling because of oppressed, thus also drives hollow mandrel to rotate.And when external force weakens or stop driving foreign steamer to rotate, hollow mandrel continues because of inertia to rotate, and drive through close-fitting assembly hollow connection shaft relative to foreign steamer in second-phase to turning to rotation, if the frictional force that now close-fitting assembly provides is not enough to drive hollow connection shaft to rotate, then hollow mandrel and tensile-elasticity assembly, namely elastic component pulls the second end of hollow connection shaft because being stretched, and drive hollow connection shaft relative to foreign steamer in second-phase to turning to rotation, thus make hollow connection shaft depart from the corotation relation with foreign steamer, and dally in clutch pinion.
According to another preferred embodiment of the invention, close-fitting assembly is a C shape clasp.
According to another preferred embodiment of the invention, second end of hollow connection shaft is provided with one first bump, and the second end of hollow mandrel is also provided with a second corresponding bump, one in first bump and the second bump is at least one, and the another one in the first bump and the second bump is at least two; When hollow connection shaft relative to the angle of swing of hollow mandrel more than a predetermined value time, namely first bump of hollow connection shaft contacts with the second bump of hollow mandrel, thus stop the relative rotary motion of hollow connection shaft and hollow mandrel, and make hollow connection shaft and hollow mandrel become synchronous corotation relation.
According to another preferred embodiment of the invention, the first end of hollow mandrel is arranged with one first ball bearing, second end of hollow mandrel is then arranged with one second ball bearing, first ball bearing and the second ball bearing are arranged between hollow mandrel and foreign steamer, use and hollow mandrel can be rotated relative to foreign steamer.
According to another preferred embodiment of the invention, foreign steamer in the inner ring wall face is arranged with three grooves, and in groove, be coated with an anaerobic adhesive, thus clutch pinion, the first ball bearing and the second ball bearing are tightly fitted in groove respectively, and be fixedly arranged in foreign steamer through the mode of anaerobic adhesive gummed.
According to another preferred embodiment of the invention, the first ball bearing is also arranged with a locating sleeve, thus by locating sleeve to limit the axial position of belt pulley on generator.
According to another preferred embodiment of the invention, foreign steamer is provided with a belt grooves in its outer shroud wall, uses and is nested with for a belt.
According to another preferred embodiment of the invention, belt is connected to a mechanical energy and produces source, drives foreign steamer to rotate by the mechanical energy source that produces provides external force to drive belt.
According to another preferred embodiment of the invention, mechanical energy produces source is an engine.
According to another preferred embodiment of the invention, hollow mandrel is provided with a flank of thread in inner ring wall, and flank of thread is with one with the engaging lever bolt of corresponding screw thread, and engaging lever is connected to a rotor, thus makes hollow mandrel corotation synchronous with rotor.
According to another preferred embodiment of the invention, foreign steamer is provided with a portion of class in inner ring wall, uses and clutch pinion can be resisted against in portion of class, thus the axial displacement of restriction clutch pinion.
According to another preferred embodiment of the invention, one end of clutch pinion is provided with positioning piece, and use the axial position limiting this clutch pinion, locating piece is a C shape clasp.
According to another preferred embodiment of the invention, elastic component is a torque spring.The wire cross-sections of this torque spring is circular, oval or rectangle.
According to another preferred embodiment of the invention, when the wire cross-sections system rectangle of torque spring, the both ends of the surface of torque spring are polished to strengthen the axially locating of torque spring and the free length of more accurate perception torque spring.
According to another preferred embodiment of the invention, the both sides of clutch pinion are arranged with an Oil sealing assembly, use and prevent the liquid in this clutch pinion from flowing out in this foreign steamer.
According to another preferred embodiment of the invention, the side of the one in Oil sealing assembly is provided with positioning piece, and locating piece close-fitting is placed on the interior sidewall surface of foreign steamer, uses the axial position limiting Oil sealing assembly.
According to another preferred embodiment of the invention, locating piece is a C shape clasp.
According to another preferred embodiment of the invention, foreign steamer is configured with a dust cover in the one end of the second end corresponding to hollow mandrel, uses and prevents external dust from entering in foreign steamer.
In order to following detailed description of the present invention can be understood better, outline characteristic sum technological merit of the present invention quite widely above.Hereafter supplementary features of the present invention and advantage will be described.Those skilled in the art will appreciate that disclosed concept can easily with making an amendment or designing the basis being used as to implement identical other structures of object of the present invention with embodiment.Those skilled in the art should be further appreciated that this type of equivalent constructions does not depart from the application's scope required for protection and spirit of the present invention.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the belt pulley for alternator of the present invention.
Fig. 2 is that the assembling of the belt pulley for alternator of the present invention completes sectional drawing.
Fig. 3 is the structural representation of hollow linking axes of the present invention.
Fig. 4 is the structural representation of hollow mandrel of the present invention.
Fig. 5 is the rotor schematic diagram of alternator of the present invention.
[primary clustering symbol description]
10 belt pulleys
110 foreign steamers
111 axis holes
112 belt grooves
113 portions of class
120 clutch pinions
121 pivot hole
122 sheath bodies
123 roll part
124 elastic components
125 cappings
130 hollow connection shafts
The first end of 131 hollow connection shafts
Second end of 132 hollow connection shafts
133 first bumps
The block wall of 134 hollow connection shafts
140 hollow mandrels
The first end of 141 hollow mandrels
Second end of 142 hollow mandrels
143 first ball bearings
144 second ball bearings
The bulge loop of 145 hollow mandrels
146 second bumps
The block wall of 147 hollow mandrels
148 flank of thread
150 elastic components
160 close-fitting assemblies
161 locating washers
162C shape clasp
170 locating sleeves
The bulge loop of 171 locating sleeves
181 Oil sealing assemblies
182 Oil sealing assemblies
183 locating pieces
184 dust covers
185 locating pieces
20 engaging levers
30 rotors
Embodiment
Following examples further illustrate the present invention.They are only for illustration of the present invention, and illustrate the various advantages of specific embodiment of the present invention, but do not represent that the present invention is confined to this kind of mode and presents.
Refer to shown in Fig. 1,2, it is that the perspective exploded view of the belt pulley for alternator of the present invention and assembling complete sectional drawing.As shown in the figure, the belt pulley 10 for alternator of the present invention mainly has foreign steamer 110, clutch pinion 120, hollow connection shaft 130, hollow mandrel 140, elastic component 150 and a close-fitting assembly 160.Foreign steamer 110 is the colyliform part that a center is provided with an axis hole 111, and is provided with a belt grooves 112 in outer shroud wall, and is provided with a portion of class 113 in inner ring wall.Clutch pinion 120 in the form of a ring, and a pivot hole 121 is provided with in center, and be fixedly arranged in the axis hole 111 of foreign steamer 110, such as foreign steamer 110 can be arranged with a groove in inner ring wall, and be coated with anaerobic adhesive in groove, thus make clutch pinion 120 that close-fitting can be utilized to merge the inner ring wall Joint of the axis hole 111 gluing together mode and foreign steamer 110 by anaerobic adhesive.One end of clutch pinion 120 is resisted against in the portion of class 113 of foreign steamer 110, use the axial position limiting clutch pinion 120, thus guarantee the vertical relation between the end face of clutch pinion 120 and hollow connection shaft 130 and hollow mandrel 140, and the axial displacement of clutch pinion 120 can be prevented in high-speed rotation, axially locating benchmark when can assemble as the inner each spare part of foreign steamer 110 in addition, contributes to the location between assembling.
Hollow connection shaft 130 has first end 131 and one second end 132, its first end 131 is rotatably arranged in clutch pinion 120, thus hollow connection shaft 130 can pass through clutch pinion 120 and transfers the registration of Party membership, etc. from one unit to another altogether turning to (such as hollow connection shaft 130 is rotated counterclockwise relative to foreign steamer 110) upper maintenance in a first-phase with foreign steamer 110, an idling conditions is entered to turning to the corotation relation of then disengaging and foreign steamer 110 on (such as hollow connection shaft 130 turns clockwise relative to foreign steamer 110) in a second-phase, now hollow connection shaft 130 rotation independent of foreign steamer 110.Hollow connection shaft 130 is provided with the first bump 133 in the second end 132 simultaneously, as shown in Figure 3.
In a preferred embodiment of the invention, this clutch pinion 120 has a sheath body 122, multiplely rolls part 123, multiple elastic component 124 and two cappings 125.Clutch pinion 120 is provided with positioning piece 185 on the opposite end of the one end against portion of class 113, and use the axial position of restriction clutch pinion 120 and prevent the capping 125 of clutch pinion 120 from coming off, this locating piece can be a C shape clasp.Can No. 098129945 application Taiwan patent of invention proposing on September 4th, 2009 of application reference people about the detailed construction of clutch pinion 120 and operating principle.But clutch pinion of the present invention is not limited to this kind of structure, any attainable cost invention all can be designed to clutch pinion 120 of the present invention for the speed difference engaging and disengaging gear of function described in clutch pinion 120.In addition, the present invention arranges an Oil sealing assembly 181,182 respectively in the two ends of clutch pinion 120, uses and prevents the liquid in clutch pinion 120 (such as lubricant oil) from infiltrating and the inside of dirty belt pulley 10.Moreover wherein the side of an Oil sealing assembly 182 can be nested with positioning piece 183, this locating piece 183 can be a C shape clasp, and it can be placed on the interior sidewall surface of foreign steamer 110 by close-fitting, uses the axial position limiting Oil sealing assembly 181,182 and clutch pinion 120.
Hollow mandrel 140 is arranged in foreign steamer 110, and there is first end 141 and one second end 142, its first end 141 is arranged with one first ball bearing 143, second end 142 is then arranged with one second ball bearing 144, all (such as foreign steamer 110 can be arranged with two grooves in inner ring wall with the inner ring wall Joint of foreign steamer 110 for first ball bearing 143 and the second ball bearing 144, and anaerobic adhesive is coated with in groove, thus make the first ball bearing 143 and the second ball bearing 144 that close-fitting can be utilized to merge the inner ring wall Joint gluing together the axis hole 111 of mode and foreign steamer 110 by anaerobic adhesive), thus hollow mandrel 140 can be rotated relative to foreign steamer 110.In addition, hollow mandrel 140 is through hollow connection shaft 130, and make the first end 141 of hollow mandrel 140 give prominence to the first end 131 of hollow connection shaft 130, second end 142 of hollow mandrel 140 is equipped with a bulge loop 145, bulge loop 145 is rotatably formulated on the second end 132 of hollow connection shaft 130, and in being convexly equipped with the second bump 146 towards the direction of hollow connection shaft 130, second bump 146 corresponds to the first bump 133, thus when hollow connection shaft 130 is relative with hollow mandrel 140 rotate a special angle after, namely first bump 133 of hollow connection shaft 130 can contact with the second bump 146 of hollow mandrel 140, thus stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140.For example, when hollow connection shaft 130 arranges two the first bumps 133 in the second end 132, and hollow mandrel 140 is also when its second end 142 arranges three the second bumps 146, after then hollow mandrel 140 being placed on hollow connection shaft 130, then hollow mandrel 140 only can turn clockwise relative to hollow connection shaft 130 or be rotated counterclockwise about 120 degree of angles, namely can stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140 because the first bump 133 contacts with the second bump 146.
Elastic component 150 is arranged between the second end 132 of hollow connection shaft 130 and the second end 142 of hollow mandrel 140.In a preferred embodiment of the invention, this elastic component is a torque spring, and the wire cross-sections of this torque spring can be circle, ellipse or rectangle.When the wire cross-sections of torque spring is rectangle, the both ends of the surface of torque spring can give grinding, use the axially locating ability the free length more accurately can grasping spring of strengthening torque spring.Hollow connection shaft 130 is convexly equipped with a block wall 134 (as shown in Figure 3) in the inner ring wall of the second end 132, uses and makes one end of elastic component 150 can be resisted against block wall 134, and elastic component 150 also can direct affixed so far block wall 134.In addition, hollow mandrel 140 is also provided with a block wall 147 (as shown in Figure 4) inside the bulge loop 145 of the second end 142, uses and makes the other end of elastic component 150 can be resisted against block wall 147, and elastic component 150 also can direct affixed so far block wall 147.When the two ends of elastic component 150 be solidly connected to hollow connection shaft 130 with hollow mandrel 140 block wall 134,147 time, hollow connection shaft 130 can be oppressed or tensile-elasticity assembly 150 with the relative rotary motion of hollow mandrel 140, and when elastic component 150 two ends only against and be not solidly connected to hollow connection shaft 130 with hollow mandrel 140 block wall 134,147 time, hollow connection shaft 130 then only can oppress elastic component 150 with the relative rotary motion of hollow mandrel 140.
Close-fitting assembly 160 is a C shape clasp, and this C shape clasp close-fitting is sheathed on the outer shroud wall of the first end 141 of hollow mandrel 140, and the distal end faces phase close-fitting of first end 131 with hollow connection shaft 130.Thus through the frictional force produced between close-fitting assembly 160 and first end 131 end face of hollow linking axes 130, and the frictional force produced between the outer shroud wall of the first end 141 of close-fitting assembly 160 and hollow mandrel 140, hollow connection shaft 130 can be made to drive and coaxial corotation mutually with hollow mandrel 140, as shown in Figure 3.
First ball bearing 143 is also arranged with a locating sleeve 170, this locating sleeve 170 is a hollow ring pipe fitting, its one end is provided with a bulge loop 171, one can be provided when belt pulley 10 of the present invention is installed on alternator to lean the function padding and put by this bulge loop 171 is arranged in the first ball bearing 143, and by this locating sleeve 170 to limit the axial position of belt pulley 10 on generator.
Hollow mandrel 140 in the inner ring wall face is provided with a flank of thread 148, this flank of thread 148 can with one with engaging lever 20 bolt of corresponding screw thread, this engaging lever 20 is then connected to a rotor 30 of alternator, thus makes hollow mandrel 140 corotation (as shown in Figure 5) synchronous with rotor 30.In addition, foreign steamer 110 is configured with a dust cover 184 in the one end of the second end 142 corresponding to hollow mandrel 140, uses and prevents external dust from entering in foreign steamer 110.
By said structure, when the mechanical energy source that produces provides an external force to drive foreign steamer 110 to start to rotate, foreign steamer 110 namely relative to hollow connection shaft 130 in first-phase to turning to rotation, and drive hollow connection shaft 130 synchronous rotary through clutch pinion 120, hollow connection shaft 130 frictional force provided by close-fitting assembly 160 and drive hollow mandrel 140 to rotate.Now, if the frictional force that close-fitting assembly 160 provides is not enough to drive hollow mandrel 140 to rotate, then namely hollow connection shaft 130 rotates relative to hollow mandrel 140, and cause the block wall 134 of the second end 132 of hollow connection shaft 130 to oppress elastic component 150, and namely elastic component 150 pushes away the block wall 147 of the second end 142 of hollow mandrel 140 of pulling because of oppressed, thus or hollow mandrel 140 is driven to rotate.Now, if the relative rotation angle of hollow connection shaft 130 and hollow mandrel 140 is more than a predetermined value (such as 120 degree of angles), then namely the first bump 133 of hollow connection shaft 130 contacts with the second bump 146 of hollow mandrel 140, thus stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140, use and avoid elastic component 150 be excessively pressed and damage its structure, and making hollow connection shaft 130 and hollow mandrel 140 form synchronous corotation relation simultaneously, hollow mandrel 140 also rotor driven 30 rotates to make alternator produce induction current.
In addition, if foreign steamer 110 is originally in rotation status, and provide an external force to accelerate the rotation of foreign steamer 110 by the mechanical energy source that produces, the operating principle of belt pulley 10 so of the present invention substantially start with aforementioned foreign steamer 110 rotate identical, so locate not repeat.
Otherwise when external force stops driving foreign steamer 110 to rotate, then hollow mandrel 140 can continue because of rotor 30 inertia to rotate.Now, the frictional force that namely hollow mandrel 140 provides through close-fitting assembly 160 and drive hollow connection shaft 130 to rotate up turning in second-phase relative to foreign steamer 110, thus make hollow connection shaft 130 depart from the corotation relation with foreign steamer 110.Now, if the frictional force that close-fitting assembly 160 provides is not enough to drive hollow connection shaft 130 to rotate, then namely hollow mandrel 140 rotates relative to hollow connection shaft 130, if elastic component 150 only against and be not solidly connected to hollow connection shaft 130 and hollow mandrel 140, then hollow mandrel 140 can continue to rotate until the second bump 146 of hollow mandrel 140 contacts with the first bump 133 of hollow connection shaft 130 relative to hollow connection shaft 130, thus stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140, and make hollow connection shaft 130 and hollow mandrel 140 form synchronous corotation relation simultaneously, to rotate up turning in second-phase relative to foreign steamer 110.
If elastic component 150 is solidly connected to hollow connection shaft 130 and hollow mandrel 140, when the frictional force then provided when close-fitting assembly 160 is not enough to drive hollow connection shaft 130 to rotate, namely hollow mandrel 140 rotates relative to hollow connection shaft 130, and tensile-elasticity assembly 150, namely elastic component 150 pulls the second end 132 of hollow connection shaft 130 because being stretched, use drive hollow connection shaft 130 relative to foreign steamer 110 in second-phase to turning to rotation, thus make hollow connection shaft 130 depart from the corotation relation with foreign steamer 110.Now, if hollow connection shaft 130 relative to the relative rotary motion of hollow mandrel 140 more than a predetermined value (such as 120 degree of angles), then namely the first bump 133 of hollow connection shaft 130 contacts with the second bump 146 of hollow mandrel 140, thus stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140, use and avoid elastic component 150 be excessively stretched and damage its structure, and make hollow connection shaft 130 and hollow mandrel 140 form synchronous corotation relation, to rotate up turning in second-phase relative to foreign steamer 110 simultaneously.
In addition, if external force weakens drive foreign steamer 110, then the operating principle of belt pulley 10 of the present invention stops the rotation identical with aforementioned foreign steamer 110 substantially, so place does not repeat.
Belt pulley 10 of the present invention can in the belt grooves 112 of foreign steamer 110 a sheathed belt (not shown), use and make the mechanical energy source that produces that external force can be provided to drive belt and drive foreign steamer 110 to rotate.In addition, belt pulley 10 of the present invention is applicable to alternator system, the alternator system of such as power generation system and vehicle.Belt pulley of the present invention is especially suitable as the stator structure of motorcar alternator.When belt pulley of the present invention is applied to vehicle alternator, mechanical energy produces source and is car body engine.
In the preferred embodiment of the present invention, belt pulley 10 of the present invention can omit close-fitting assembly 160, and makes the two ends of elastic component 150 be solidly connected to the second end 142 block wall 147 of hollow mandrel 140 and the second end 132 block wall 134 of hollow connection shaft 130.Thus, when external force drives foreign steamer 110 to rotate, foreign steamer 110 relative to hollow connection shaft 130 in first-phase to turning to rotation, and drive hollow connection shaft 130 synchronous rotary through clutch pinion 120, namely second end 132 of hollow connection shaft 130 oppresses elastic component 150, and namely elastic component 150 pushes away the block wall 147 of the second end 142 of hollow mandrel 140 of pulling because of oppressed, thus also drive hollow mandrel 140 to rotate, if now hollow connection shaft 130 relative to the angle of swing of hollow mandrel 140 more than a predetermined value, then namely the first bump 133 of hollow connection shaft 130 contacts with the second bump 146 of hollow mandrel 140, thus stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140, use and avoid elastic component 150 to be excessively pressed, and make hollow connection shaft 130 corotation relation synchronous with this hollow mandrel 140 one-tenth simultaneously, and drive rotor 30 to rotate.
Otherwise, when external force weakens or stop driving foreign steamer 110 to rotate, hollow mandrel 140 continues because of rotor 30 inertia to rotate, and tensile-elasticity assembly 150, namely elastic component 150 pulls the second end 132 of hollow connection shaft 130 because being stretched, use drive hollow connection shaft 130 relative to foreign steamer 110 in second-phase to turning to rotation, thus make hollow connection shaft 130 depart from the corotation relation with foreign steamer 110, and dally in clutch pinion 120, if now hollow connection shaft 130 relative to the angle of swing of hollow mandrel 140 more than a predetermined value, then namely the first bump 133 of hollow connection shaft 130 contacts with the second bump 146 of hollow mandrel 140, thus stop the relative rotary motion of hollow connection shaft 130 and hollow mandrel 140, use and avoid elastic component 150 to be excessively stretched, and make hollow connection shaft 130 corotation relation synchronous with hollow mandrel 140 one-tenth simultaneously, and dally in foreign steamer 110.In addition, in the preferred embodiment of the present invention, belt pulley 10 of the present invention also can not arrange the first bump 133 and the second bump 146, and make the bulge loop 145 of the second end 142 of hollow mandrel 140 directly be set in the second end 132 of hollow connection shaft 130, and the two ends of elastic component 150 are made to be solidly connected to the second end 142 block wall 147 of hollow mandrel 140 and the second end 132 block wall 134 of hollow connection shaft 130.Thus, when external force drives foreign steamer 110 to rotate, foreign steamer 110 relative to hollow connection shaft 130 in first-phase to turning to rotation, and drive hollow connection shaft 130 synchronous rotary through clutch pinion 120, hollow connection shaft 130 also drives hollow mandrel 140 to rotate by close-fitting assembly 160, if the frictional force that now close-fitting assembly 160 provides is not enough to drive hollow mandrel 140 to rotate, then namely the block wall 134 of the second end 132 of hollow connection shaft 130 oppresses elastic component 150, and namely elastic component 150 pushes away the block wall 147 of the second end 142 of hollow mandrel 140 of pulling because of oppressed, thus also drive hollow mandrel 140 to rotate, use and drive the rotor 30 of alternator to rotate.
Otherwise, when external force weakens or stop driving foreign steamer 110 to rotate, hollow mandrel 140 continues because of rotor 30 inertia to rotate, and drive through close-fitting assembly 160 hollow connection shaft 130 relative to foreign steamer 110 in second-phase to turning to rotation, if the frictional force that now close-fitting assembly 160 provides is not enough to drive hollow connection shaft 130 to rotate, so hollow mandrel 140 i.e. tensile-elasticity assembly 150, namely elastic component 150 pulls the second end 132 of hollow connection shaft 130 because being stretched, use drive hollow connection shaft 132 relative to this foreign steamer 110 in second-phase to turning to rotation, thus make hollow connection shaft 130 depart from the corotation relation with foreign steamer 110, and dally in clutch pinion 120.
Moreover, in the preferred embodiment of the present invention, belt pulley 10 of the present invention also can not arrange close-fitting assembly 160, first bump 133 and the second bump 146, and make the bulge loop 145 of the second end 142 of hollow mandrel 140 directly be set in the second end 132 of hollow connection shaft 130, and the two ends of elastic component 150 are made to be solidly connected to the second end 142 block wall 147 of hollow mandrel 140 and the second end 132 block wall 134 of hollow connection shaft 130.Thus when external force drives foreign steamer 110 to rotate, foreign steamer 110 relative to hollow connection shaft 130 in first-phase to turning to rotation, and drive hollow connection shaft 130 synchronous rotary through clutch pinion 120, namely the block wall 134 of the second end 132 of hollow connection shaft 130 oppresses elastic component 150, and namely elastic component 150 pushes away the block wall 147 of the second end 142 of hollow mandrel 140 of pulling because of oppressed, thus hollow mandrel 140 is also driven to rotate.
Otherwise, when external force weakens or stop driving foreign steamer 110 to rotate, hollow mandrel 140 continues because of rotor 30 inertia to rotate, and tensile-elasticity assembly 150, namely elastic component 150 pulls the second end 132 of hollow connection shaft 130 because being stretched, use drive hollow connection shaft 130 relative to foreign steamer 110 in second-phase to turning to rotation, thus make hollow connection shaft 130 depart from the corotation relation with foreign steamer 110, and idle running clutch pinion 120 in.
Although described the present invention and advantage thereof in detail, it will be appreciated that, do not departed from the spirit and scope of the invention situation that appended claims limits, can also make a variety of changes, replacement scheme and change.And the scope of the invention is not intended to be limited to the embodiment of described in this manual technique, machine, manufacture thing, composition of matter, means, method and step.Those skilled in the art will recognize easily from content disclosed in this invention, can according to the present invention utilize existing or to develop backward, perform identical function or realize substantially and the technique of corresponding mode of execution identical result described herein, machine, manufacture thing, composition of matter, means, method and step substantially.Correspondingly, the scope of appended claims is intended to this type of technique, machine, manufacture thing, composition of matter, means, method or step to be included within the scope of them.
Claims (18)
1., for a belt pulley for alternator, it comprises:
One foreign steamer, its center is provided with an axis hole;
One clutch pinion, it is fixedly arranged in the described axis hole of described foreign steamer, and has a pivot hole;
One hollow connection shaft, it has a first end and one second end, described first end is rotatably arranged in the described pivot hole of described clutch pinion, thus described hollow connection shaft transfers the registration of Party membership, etc. from one unit to another altogether turning to upper maintenance in a first-phase through described clutch pinion and described foreign steamer, become an idling conditions in a second-phase to turning to the described corotation relation of then disengaging and described foreign steamer;
One hollow mandrel, it has a first end and one second end, described hollow mandrel is rotatably placed in described foreign steamer, and described hollow mandrel is through described hollow connection shaft, make the described first end of described hollow mandrel give prominence to the described first end of described hollow connection shaft, and make the second end of described hollow mandrel rotatably be configured on described second end of described hollow linking axes;
One elastic component, it is arranged between described second end of described hollow connection shaft and described second end of described hollow mandrel; And
One close-fitting assembly, its close-fitting is sheathed on the outer shroud wall of the described first end of described hollow mandrel, and an end face phase close-fitting of described first end with described hollow connection shaft, thus through the frictional force of described close-fitting assembly respectively and between described hollow connection shaft and described hollow mandrel, make described hollow connection shaft corotation coaxial with described hollow mandrel;
Thus when external force drives described foreign steamer to rotate, described foreign steamer relative to described hollow connection shaft in described first-phase to turning to rotation, and drive described hollow connection shaft synchronous rotary through described clutch pinion, described hollow connection shaft also drives described hollow mandrel to rotate by described close-fitting assembly, if when the frictional force that now described close-fitting assembly provides is not enough to drive described hollow mandrel to rotate, namely described second end of described hollow connection shaft oppresses described elastic component, and namely described elastic component pushes away described second end of described hollow mandrel of pulling because of oppressed, thus also drive described hollow mandrel to rotate,
And when external force weakens or stop driving described foreign steamer to rotate, described hollow mandrel continues because of inertia to rotate, and drive through described close-fitting assembly described hollow connection shaft relative to described foreign steamer in described second-phase to turning to rotation, if the frictional force that now described close-fitting assembly provides is not enough to drive described hollow connection shaft to rotate, then namely described hollow mandrel stretches described elastic component, namely described elastic component pulls described second end of described hollow connection shaft because being stretched, use drive described hollow connection shaft relative to described foreign steamer in described second-phase to turning to rotation, thus make described hollow connection shaft depart from the described corotation relation with described foreign steamer, and dally in described clutch pinion.
2., as claimed in claim 1 for the belt pulley of alternator, wherein said close-fitting assembly is a C shape clasp.
3. as claimed in claim 1 for the belt pulley of alternator, described second end of wherein said hollow connection shaft is provided with one first bump, and described second end of described hollow mandrel is also provided with a second corresponding bump, one in described first bump and described second bump is at least one, the another one of described first bump and described second bump is then at least two, when described hollow connection shaft relative to the angle of swing of described hollow mandrel more than a predetermined value time, namely described first bump of described hollow connection shaft contacts with described second bump of described hollow mandrel, thus stop the relative rotary motion of described hollow connection shaft and described hollow mandrel, and make described hollow connection shaft and described hollow mandrel become synchronous corotation relation.
4. as claimed in claim 1 for the belt pulley of alternator, the described first end of wherein said hollow mandrel is arranged with one first ball bearing, described second end of described hollow mandrel is then arranged with one second ball bearing, described first ball bearing and described second ball bearing are arranged between described hollow mandrel and described foreign steamer, use and described hollow mandrel can be rotated relative to described foreign steamer.
5. as claimed in claim 4 for the belt pulley of alternator, wherein said foreign steamer in the inner ring wall face is arranged with three grooves, and an anaerobic adhesive is coated with in described groove, thus described clutch pinion, described first ball bearing and described second ball bearing are tightly fitted in described groove respectively, and be fixedly arranged in described foreign steamer through the mode that described anaerobic adhesive glues together.
6., as claimed in claim 4 for the belt pulley of alternator, wherein said first ball bearing is also arranged with a locating sleeve, thus by described locating sleeve to limit the axial position of described belt pulley on described alternator.
7. as claimed in claim 1 for the belt pulley of alternator, wherein said foreign steamer is provided with a belt grooves in its outer shroud wall, uses and is nested with for a belt.
8. as claimed in claim 7 for the belt pulley of alternator, wherein said belt is connected to a mechanical energy and produces source, drives described foreign steamer to rotate by the described mechanical energy source that produces provides external force to drive described belt.
9., as claimed in claim 8 for the belt pulley of alternator, it is an engine that wherein said mechanical energy produces source.
10. as claimed in claim 1 for the belt pulley of alternator, wherein said hollow mandrel is provided with a flank of thread in inner ring wall, described flank of thread with one with the engaging lever bolt of corresponding screw thread, described engaging lever is connected to a rotor, thus makes described hollow mandrel corotation synchronous with described rotor.
11. as claimed in claim 1 for the belt pulley of alternator, and wherein said foreign steamer is provided with a portion of class in inner ring wall, uses and described clutch pinion can be resisted against in portion of described class, thus limit the axial displacement of described clutch pinion.
12. as claimed in claim 1 for the belt pulley of alternator, and one end of wherein said clutch pinion is provided with positioning piece, uses the axial position limiting described clutch pinion.
13. as claimed in claim 1 for the belt pulley of alternator, and wherein said elastic component is a torque spring, and the wire cross-sections of described torque spring is circular, oval or rectangle.
14. as claimed in claim 13 for the belt pulley of alternator, wherein when the wire cross-sections of described torque spring is rectangle, the both ends of the surface of described torque spring are polished to strengthen the axially locating of described torque spring and the free length of more torque spring described in accurate perception.
15. as claimed in claim 1 for the belt pulley of alternator, and the both sides of wherein said clutch pinion are arranged with an Oil sealing assembly, use and prevent the liquid in described clutch pinion from flowing out in described foreign steamer.
16. as claimed in claim 15 for the belt pulley of alternator, the side of the one in wherein said Oil sealing assembly is provided with positioning piece, described locating piece close-fitting is placed on the interior sidewall surface of described foreign steamer, uses the axial position limiting described Oil sealing assembly.
17. belt pulleys for alternator as described in claim 12 or 16, wherein said locating piece is a C shape clasp.
18. as claimed in claim 1 for the belt pulley of alternator, and wherein said foreign steamer is configured with a dust cover in the one end of described second end corresponding to described hollow mandrel, uses and prevents external dust from entering in described foreign steamer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103124191 | 2014-07-14 | ||
| TW103124191A TWI551794B (en) | 2014-07-14 | 2014-07-14 | Pulley for an alternator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257805A true CN105257805A (en) | 2016-01-20 |
| CN105257805B CN105257805B (en) | 2018-07-24 |
Family
ID=55067270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510385307.2A Expired - Fee Related CN105257805B (en) | 2014-07-14 | 2015-06-30 | Pulley for alternator |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9709153B2 (en) |
| CN (1) | CN105257805B (en) |
| TW (1) | TWI551794B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016211141B4 (en) * | 2016-06-22 | 2021-04-22 | Schaeffler Technologies AG & Co. KG | Pulley decoupler |
| US11028884B2 (en) * | 2018-07-20 | 2021-06-08 | Gates Corporation | Isolating decoupler |
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| TWM390380U (en) * | 2010-04-02 | 2010-10-11 | ||
| US8419574B2 (en) | 2010-04-06 | 2013-04-16 | The Gates Corporation | Isolator |
| TWM396894U (en) * | 2010-04-06 | 2011-01-21 | yi-ping Cai | Clutch composition for unidirectional transmission belt pulley of powered vehicle |
| BRMU9100757Y1 (en) | 2011-04-11 | 2018-07-24 | Zen S.A. Indústria Metalúrgica | WHEEL-FREE PULLEY WITH ELASTOMER TORTIONAL DAMPING SYSTEM |
| US20120322592A1 (en) * | 2011-04-11 | 2012-12-20 | Zen Sa Industria Metalurgica | Overrunning pulley with elastomer torsional damping system |
| US9140319B2 (en) | 2012-11-20 | 2015-09-22 | Litens Automotive Partnership | Decoupler with concentric clutching members |
-
2014
- 2014-07-14 TW TW103124191A patent/TWI551794B/en not_active IP Right Cessation
- 2014-12-31 US US14/587,012 patent/US9709153B2/en active Active
-
2015
- 2015-06-30 CN CN201510385307.2A patent/CN105257805B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1668859A (en) * | 2002-07-26 | 2005-09-14 | 利滕斯汽车公司 | Overrunning alternator decoupler pulley with bare wire spring and grease lubrication |
| CN1890479A (en) * | 2003-12-09 | 2007-01-03 | 利滕斯汽车合伙公司 | Spring travel limitor for overrunning alternator decoupler |
| US20100009796A1 (en) * | 2008-07-09 | 2010-01-14 | Fitz Frank A | Cam damped pulley for rotary devices |
| CN102906441A (en) * | 2010-05-25 | 2013-01-30 | 利滕斯汽车合伙公司 | Decoupler assembly with sliding interface between hub and pulley |
| WO2011160202A1 (en) * | 2010-06-25 | 2011-12-29 | Litens Automotive Partnership | Overrunning decoupler |
| WO2012061930A1 (en) * | 2010-11-09 | 2012-05-18 | Litens Automotive Partnership | Decoupler assembly having limited overrunning capability |
| CN103210226A (en) * | 2010-11-14 | 2013-07-17 | 利滕斯汽车合伙公司 | Decoupler with tuned damping and methods associated therewith |
| CN202188093U (en) * | 2011-08-04 | 2012-04-11 | 合肥佳讯精密机械制造有限公司 | Pulley with bent axle one-way clutch used for accessory system of automobile engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105257805B (en) | 2018-07-24 |
| US9709153B2 (en) | 2017-07-18 |
| TWI551794B (en) | 2016-10-01 |
| US20160010742A1 (en) | 2016-01-14 |
| TW201602478A (en) | 2016-01-16 |
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